Severe outcomes in pregnant women hospitalized with severe confirmed influenza infection, by season.

<p>Spain, 2010–2016.</p

Demographic and clinical characteristics of hospitalized confirmed severe influenza women of reproductive age, by pregnancy status.

<p>Spain, 2010–2016.</p

Factors associated with ICU admission, death and ICU admission or death in hospitalized confirmed severe influenza women of reproductive age.

<p>Spain, 2010–2016.</p

Influenza vaccine effectiveness in preventing laboratory-confirmed influenza by virus type/subtype in Spain, seasons 2010–2011 to 2015–2016.

<p>Influenza vaccine effectiveness in preventing laboratory-confirmed influenza by virus type/subtype in Spain, seasons 2010–2011 to 2015–2016.</p

Relative risk of hospitalization with severe influenza in pregnant women, Spain, 2010–2015.

<p>Relative risk of hospitalization with severe influenza in pregnant women, Spain, 2010–2015.</p

Demographic and clinical characteristics of pregnant women hospitalized with severe confirmed influenza infection, by level of severity.

<p>Spain, 2010–2016.</p

Weekly ILI rates and number of severe hospitalized pregnant women with confirmed influenza by type/subtype of influenza virus, Spain, seasons 2010/11 to 2015/2016.

<p>Weekly ILI rates and number of severe hospitalized pregnant women with confirmed influenza by type/subtype of influenza virus, Spain, seasons 2010/11 to 2015/2016.</p

Characteristics of influenza A(H3N2) cases and test negative controls in Spain, seasons 2011–2012, 2013–2014 and 2014–2015.

<p>Characteristics of influenza A(H3N2) cases and test negative controls in Spain, seasons 2011–2012, 2013–2014 and 2014–2015.</p

Risk of hospitalization with laboratory-confirmed severe influenza infection in women of reproductive age, according to pregnancy status.

<p>Spain, 2010–2016.</p

Cases and controls recruitment, cycEVA study, seasons 2010–2011 to 2015–2016, Spain.

<p>Cases and controls recruitment, cycEVA study, seasons 2010–2011 to 2015–2016, Spain.</p